The sleepy Pacific Northwest town of Eureka is hiding a mysterious secret. The government has been relocating the world's geniuses and their families to this rustic town for years where innovation and chaos have lived hand in hand. U.S. Marshal Jack Carter stumbles upon this odd town after wrecking his car and becoming stranded there. When the denizens of the town unleash an unknown scientific creation, Carter jumps in to try to restore order and consequently learns of one of the country's best kept secrets.
Bad to the Drone (Episode 1) 7.8
Writer: Jaime Paglia
Air date: 2008-07-29
Runtime: 44 min
Overview: The search is one for an escaped drone as Eva Thorne arrives to assist the clean up of damages which Global Dynamics has caused.
What About Bob? (Episode 2) 8.0
Writer: Charles Grant Craig
Air date: 2008-08-05
Runtime: 44 min
Overview: Carter and Allison investigate when a scientist mysteriously disappears from a sealed biosphere. Meanwhile, the "Fixer" tries to make Eureka's efforts more profitable.
Best in Faux (Episode 3) 7.8
Writer: Bruce Miller
Air date: 2008-08-12
Runtime: 44 min
Overview: Eureka's annual dog show is underway and is like none other. Meanwhile, Sheriff Carter experiences an earthquake; Zoe debates quitting the accelerated physics program; and Allison starts the process of fitting her wedding dress.
I Do Over (Episode 4) 8.3
Writer: Thania St. John
Air date: 2008-08-19
Runtime: 44 min
Overview: It's Allison and Stark's wedding day and Carter finds himself reliving it over and over. Meanwhile, Carter's sister, Lexi, visits the town.
Show Me the Mummy (Episode 5) 7.8
Writer: Curtis Kheel
Air date: 2008-08-26
Runtime: 44 min
Overview: A search for a mummy ensues after a famed archaeologist opens the tomb of an Egyptian queen at Global Dynamics.
Phased and Confused (Episode 6) 7.6
Writer: Nick Wauters
Air date: 2008-09-09
Runtime: 43 min
Overview: Carter's job is made more difficult when a super hero emerges. Meanwhile, Zoe and her friends are imperiled when Thorne makes a subterranean search beneath Eureka.
Here Come the Suns (Episode 7) 8.2
Writer: Jaime Paglia
Air date: 2008-09-16
Runtime: 43 min
Overview: The Eureka mayoral race is overshadowed by the sudden arrival of a second sun, forcing Carter, Allison and Zane to investigate it more closely.
From Fear to Eternity (Episode 8) 8.3
Writer: Thania St. John
Air date: 2008-09-23
Runtime: 44 min
Overview: Trust issues are produced by a scientific find, along with sinister results. Zoe's life is in jeopardy, and Eva Thorne knows what has caused the predicament.
Welcome Back Carter (Episode 9) 8.1
Writer: Bruce Miller
Air date: 2009-07-10
Runtime: 44 min
Overview: Carter interviews for a job with the Department of Homeland Security, after being terminated as the sheriff. Deputy Lupo decides to resign after discovering that a very personable robot is the new sheriff.
Your Face Or Mine (Episode 10) 7.8
Writer: Jaime Paglia
Air date: 2009-07-17
Runtime: 44 min
Overview: Jo displays atypical behavior after a DNA scan malfunctions, unfortunately it's while she's interim sheriff because Carter is undergoing a 48-hour DOD recertification test.
Insane In The P-Brane (Episode 11) 8.1
Writer: Thania St. John
Air date: 2009-07-24
Runtime: 44 min
Overview: Dr. Tess Fontana reopens Section 5, causing objects to become ambulatory , possibly due to poltergeists.
It's Not Easy Being Green (Episode 12) 8.0
Writer: Curtis Kheel
Air date: 2009-07-31
Runtime: 44 min
Overview: Carter finds himself chasing down creation of blob-ical like proportions when a series of escalating pranks turn deadly. Elsewhere, long-term rivals from Area 51 come to Eureka for a bowling tournament.
If You Build It... (Episode 13) 8.2
Writer: Bruce Miller
Air date: 2009-08-07
Runtime: 44 min
Overview: Eureka's teenagers who appear to have been manipulated while asleep, gathered in a field where they assembled a strange structure comprised of scrap metal and electronics.
Ship Happens (Episode 14) 8.2
Writer: Charles Grant Craig
Air date: 2009-08-14
Runtime: 44 min
Overview: Henry's ship returns causing Carter to fear it maybe linked to the town's deadly electrical anomalies.
Shower the People (Episode 15) 8.0
Writer: Thania St. John
Air date: 2009-08-21
Runtime: 44 min
Overview: Allison's baby shower fetches her a load of eco-friendly gifts and the discovery of a drowned scientist in a location where drowning is impossible.
You Don't Know Jack (Episode 16) 7.3
Writer: Eric Wallace
Air date: 2009-08-28
Runtime: 43 min
Overview: Global Dynamics sonic cleaning coincides with a phenomenon in which the citizens of Eureka develop a form of amnesia. Meanwhile, Allison goes into labor.
Have an Ice Day (Episode 17) 8.0
Writer: Joan Binder Weiss
Air date: 2009-09-11
Runtime: 44 min
Overview: The first day on the job as temporary head of Global Dynamics proves daunting for Tess when a new Ice Age comes to Eureka; and a familiar face returns in the process.
What Goes Around Comes Around (Episode 18) 8.1
Writer: Jaime Paglia
Air date: 2009-09-18
Runtime: 44 min
Overview: Tess has a job offer from Australia, Zoe is prepared to leave for Harvard and Carter has a magnetic disturbance above Eureka to contend with, in the third season finale.